What three variables does gravity depend on?

What three variables does gravity depend on?

• A. The distance between the objects
• B. The masses of the two objects and their velocity
• C. The masses of the two objects and their distance apart
• D. The distance apart and the medium density

Answer: (C)

Gravitational attraction in classical physics depends on the masses involved and how far apart they are. According to Newton's law of universal gravitation, the force is proportional to the product of the two masses and inversely proportional to the square of the distance between them: F ∝ m1 m2 / r^2. This means larger masses pull harder, and the force drops rapidly as the separation grows. The velocity of the objects doesn’t affect the instantaneous strength of gravity, only how they move under its influence. The density of any medium between them doesn’t change the gravitational attraction in the standard theory, since gravity acts through space regardless of surrounding material. So the variables are the two masses and the distance between them.

Gravitational attraction in classical physics depends on the masses involved and how far apart they are. According to Newton's law of universal gravitation, the force is proportional to the product of the two masses and inversely proportional to the square of the distance between them: F ∝ m1 m2 / r^2. This means larger masses pull harder, and the force drops rapidly as the separation grows. The velocity of the objects doesn’t affect the instantaneous strength of gravity, only how they move under its influence. The density of any medium between them doesn’t change the gravitational attraction in the standard theory, since gravity acts through space regardless of surrounding material. So the variables are the two masses and the distance between them.